On Fri, Jan 15, 2010 at 8:22 PM, Julian <juliangam...@gmail.com> wrote: > Matt Raible - Spring Expert and Java consultant posted the following > entry to Twitter: > "Why is Clojure better than Scala or Groovy?"
If I had to pick just one specific feature (which may be a bad way to going about answering this, but anyway...) I would say "macros" Clojure has full-on straight-up Lisp-style code-rewriting macros, and this changes the game. Macros have a unique combination of properties for a language feature: dramatically powerful, very well understood (lots of material written about them), and yet still relatively rare among popular new languages. Many dynamic languages have meta-programming features that can be used to fill some of the gaps left by lack of macros, so I wasn't convinced of the power and practicality of Lisp-style macros until I read Paul Grahams "On Lisp". I highly recommend it. Even though it talks mostly about Common Lisp and therefore Common Lisp macros, the macro discussions are very transferable to Clojure. http://www.bookshelf.jp/texi/onlisp/onlisp.html There are other reasons to like Clojure, but that's perhaps the simplest one to name. --Chouser http://joyofclojure.com/
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